baber/WOPTO huggingface dataset:
Patent GB-215397-A (GB)
Title: Improvements in and relating to electrical switches
IPC: H01H23/04
Filed: 1922-11-03
Abstract: 215,397. Clark, W. Nov. 3, 1924. Switch bases: lighting systems; couplings.-In, order to provide for dual or distant control of a lamp in an existing system, in which the lamp iscontrolled by an ordinary tumbler switch, the ordinary screw-held cover is replaced by one carrying insulated' contacts which engage with the fixed switch contacts and are connected to the auxiliary or distant-control switch. In the arrangement shown in Figs. 2 and 3 providing an auxiliary control point, the tumbler switch cover has a pair of insulated spring contacts g which abut against the fixed contacts i and are connected through leads to the auxiliary switch. With this arrangement the lamp can be put on or off from either switch provided the other switch is in the off position. To obtain full control without this limitation, a two-way tumbler switch is employed and a cover with three abutting contacts is used therewith, the contacts being connected to an auxiliary threeway switch at a distant point.
Patent GB-976179-A (GB)
Title: Improvements in and relating to loudspeaking telephone systems and apparatus
Inventor: HOWELL DEREK
IPC: H04M1/58
Filed: 1963-07-30
Abstract: 976,179. Loud-speaking telephone apparatus. TELEPHONE MANUFACTURING CO. Ltd. July 30, 1963, No. 30143/63. Heading H4R. Loud-speaking apparatus is connected to line via a hybrid transformer having connected in its balancing arm the induction coil of a conventional telephone handset. Since the telephone line is likely to be terminated by a similar handset an effective balance should thus be obtained. A resistance may be placed in series with the induction coil to compensate for the line resistance. As shown, with the cradle switch CS normal the send and receive amplifier SA, RA are connected to the line ZL by the hybrid HT which has the induction coil IC in the balance arm. When the cradle switch is operated the amplifiers are disabled and the telephone set is connected directly to line.
Patent GB-477226-A (GB)
Title: Improvements in fertilizer and like distributors
IPC: A01C15/10
Filed: 1936-11-05
Abstract: 477,226. Distributers for manures &c. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. (International Harvester Co.) Nov. 5, 1936, No. 30156. [Class 6 (i)] In a machine having the base of the hopper formed as, or provided with, grid elements disposed one above another and the delivery of material from the hopper effected by a to- and-fro movement of one or more of the grid elements, one of the grids is formed along one side with an unslotted plate portion and means are provided for moving this unslotted portion across the slots in the remaining grid elements in a direction transverse to the to-and-fro movement to shut off, either entirely or partially, the slots in the said remaining grids. The long hopper 1 is carried by end stub axles supported on road wheels. The base may comprise two fixed grids or slotted plates 4, 6 and a movable grid or slotted plate 5. The slots in the plates 4, 6 are staggered and those in the plate 5 are inclined and shaped as shown. The grid 5 is reciprocated by a cam housed in a casing and adapted to be coupled to a road wheel by means of a spring latch device. Engaging in the cam groove is a stud secured on a guide pin movable in a tubular guide, and on the guide pin is another stud 19 engaging in a groove 20 in a guide element 21 on the grid 5. A reciprocating agitator 22 may be suspended from rods 24 by rods 23. The grid 5 may be moved across the grids 4, 6 by means of a lever 32, so as to move the unslotted part 25 across the slots. The lever 32 is secured on a shaft 27 provided with adjustable arms 29 provided with hooks 31 which hook over the upstanding edge 26 of an angle bracket on the grid 5. A pin 36 on the lever 32 moves in an arcuate groove 35 in a graduated bracket 33. The stroke of the grid 5 remains constant for all adjustments. In a modification, a fixed grid is disposed between two moving grids which are joined together and formed with unslotted portions in one or both. In another arrangement the moving grids are formed separately. In another a fixed grid is adjustable between two moving grids joined together. In another the upper stationary grid 4 has an unslotted portion and is adjustable.
Patent GB-535718-A (GB)
Title: Improvements in and relating to hydraulic mechanism
IPC: F15B11/072
Filed: 1939-11-16
Abstract: 535,718. Pneumatic single-stroke apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 16, 1939, No. 30180. Convention date, Nov. 18, 1938. [Class 8(ii)] [Also in Group XXIX] In apparatus comprising a piston operated through a body of liquid by compressed gas, liquid that leaks past the piston is trapped in a reservoir provided with a check-valve, and is periodically forced back into the liquid-chamber. The apparatus shown in the Figure comprises, as described in Specification 514,005, [Group XXXVII], a piston 10, an oil-chamber 20, and valves 14, 15, 22 operated by coils 11, 12. On energization of the coils, compressed air is admitted to the chamber, oil is forced out, and the piston is raised, coil 12 being then de-energized to re-close the valve 22 and thereby maintain the piston in raised position. On de-energization and re-energization of the coils 11, 12, compressed air is applied to the tops of the piston-chamber, and the piston is depressed. For trapping oil that leaks through the packing 28 into the space 29, the apparatus is now provided with a passage 30 leading through a ball-valve 31 to an inclined reservoir 32 which communicates through pipes 33, 34 with the chamber 20. When the trapped oil covers the end of the pipe 33, air bubbles through the oil and builds up pressure in the reservoir, and when pressure is released from the chamber 20 to depress the piston, oil is forced out of the reservoir and returned to the chamber. Oil sprayed off the ball-valve 31 during closing thereof passes through an opening 36, is caught by a filter 35, and flows back through the ball-valve to the reservoir. The minute quantity of oil that passes the filter, seeps through a threaded connection 38, and returns to the reservoir through a groove 39 and holes 40.
Patent GB-945619-A (GB)
Title: Improvements in and relating to rotary-soythe mowers
IPC: A01D34/68
Filed: 1961-08-22
Abstract: 945,619. Rotary-scythe mowers. ROVER MOWERS PTY. Ltd. Aug. 22, 1961 [Aug. 22, 1960], No. 30222/61. Heading A1F. A rotary-scythe mower comprises a main frame 11 mounted on two co-axial rear wheels 36 rotatable about a transverse axis, a wheeled rotor-housing 19 at the front of the frame 11 containing a vertical rotor-shaft 21 connected to the driving-shaft 18 of a motor 17 mounted at the rear of the frame, a transverse lay-shaft 44 driven by the motor but otherwise immovable on the frame, and handles 14 connected to the rear wheels to raise and lower them relatively to the main frame so that they can be driven by wheel-contacting rollers 49 mounted on the layshaft. The motor is mounted on a cradle 26 which is slidable on the main frame 11 by means of a handle 28 to make or interrupt a belt-drive 23 from the shaft 18 to the rotor-shaft 21; the cradle is inclined to the centre-line of the frame 11 so that the pulley 47 on the motor-shaft can be correctly aligned with the rotor-shaft 21. The wheels 36 are free on an axle 35 carried by levers 33 pivoted at 32 to hangers 30 forming part of the frame 11. An extension 37 of one of the levers 33 is connected by an adjustable-length rod 38 to an over-centre lever-arm 41 self-sustaining in two positions (Fig. 3, and Fig. 4, not shown). The lay-shaft 44 is driven by a belt 48 from a pulley on the motor driving-shaft 18. Reference has been directed by the Comptroller to Specification 816,145.
Patent GB-141667-A (GB)
Title: Improvements in or relating to locks for doors or the like
IPC: E05B13/00
Filed: 1919-12-03
Abstract: 141,667. Husny, K. April 14, 1919, [Convention date]. Locking sliding latches.-The handle of a door fastening is locked against operation by the engagement with recesses 18 in the spindle of pivoted arms 22 released by the insertion of a key. The arms may be of a scissor-form, the key acting upon the ends remote from the handle spindle. A finger-turn 27 may be provided on the inner side of the door. In the double latch shown, one bolt 1 is withdrawn directly by a stud 5 on the arm 4, and the other by a lever 13 operated by a projection 11. The locking members may be fitted in a separate casing, which is reversible to present the keyhole to either side of the door.
Patent GB-726520-A (GB)
Title: Improvements in crown closures
IPC: B65D41/12
Filed: 1953-11-03
Abstract: 726,520. Crown corks. WOLFF, F. Nov. 3, 1953 [Aug. 5, 1953], No. 30355/53. Class 125(3). A crown cork closure has a sealing element 1 of a high polymer plastic such as polyethylene capable of permanent deformation at room temperature by the mechanical pressure of the capping operation and consisting of a ring, the annular face of which facing the closure cap 3 prior to closure, has a radial width a less than the axial extension b of the cylindrical face c. The closure may have an inner liner 2 of aluminium foil'or a plastic inert to the contents of the receptacle or a sheet of paper having a waterproof coating of an ethylene polymer or a varnish or enamel and may be retained in position by inward embossments 11.
Patent GB-418408-A (GB)
Title: Improvements in apparatus comprising in combination, a watch and a mirror
IPC: B60R1/12
Filed: 1933-11-01
Abstract: 418,408. Clocks, cases, and dials. ETABLISSEMENTS E. JAEGER, 2, Rue Baudin, Levallois-Perret, Seine, France. Nov. 1, 1933, No. 30375. Convention date, Oct. 4. Addition to 395,937. [Class 139.] In a combined chronometer and rear view mirror having sight openings formed by removing a portion of the silvering of the mirror, e.g. as described in the parent Specification, a circular portion 60 of the silvering at the rear of the mirror is removed to expose the hands of the chronometer, and around this portion the numerals are formed by removal of further silvering and substitution of a preferably white translucent material. The chronometer casing 10 is made of pressed metal and is secured to the bevelled edges of the mirror 2 by means of a pair of integral lower tongues 37 and an upper detachable tongue 41 tightened in position by a screw 39. For mounting the casing on the ball 53 a screw 52 is engaged within a threaded sleeve 67 fixed to the casing. The interior of the casing 10 is coated with a reflecting material so as to illuminate the numerals indirectly by the rays from a lamp 46 held in position between two resilient insulated contact blades 68, 69. Suitable apertures may be formed in the casing for cooling or ventilating the latter.
Patent GB-1143246-A (GB)
Title: Improvements in or relating to epoxide resins
Inventor: YOUNG ERIC WHICHELL
IPC: C08G59/14
Filed: 1966-07-06
Abstract: 1,143,246. Epoxy resins. CIBA (A.R.L.) Ltd. 13 June, 1967 [6 July, 1966], No. 30401/66. Heading C3B. The hydroxyl group content of an epoxy resin is reduced by reaction with: in which R is hydrogen, alkyl, alkenyl, cycloalkyl, cycloalkenyl or aryl; R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> each denote alkyl or alkenyl groups, at least one of R<SP>2</SP> and R<SP>3</SP> containing not > five carbon atoms; m is 0 or 1. When R is hydrogen, m is 1 and R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are alkyl or alkenyl groups containing up to 5 carbon atoms, the compounds are orthoformates, e.g. trimethyl or triethyl orthoformate. When R is hydrogen and m is 0, the compounds are acetals, e.g. diethyl acetal, di-n-propyl acetal, propionaldehyde diethyl acetal or acrolein diethyl acetal. When R is alkyl, alkenyl or phenyl and m is 0, the compounds are ketals, e.g. 2,2-dimethoxypropane. Reaction with the compounds of the invention may take place in the presence of a small amount of an acid catalyst, e.g. HCl. The compound I may be more volatile than the epoxy resin and be employed in excess of that required to react with all the OH groups of the epoxy resin; the excess is distilled off on completion of the reaction. The resins with reduced hydroxyl content may be hardened with conventional epoxy resin curing agents and accelerators.
Patent GB-1121305-A (GB)
Title: Preparation of chloro-organo-polysulphides
IPC: C07D331/02
Filed: 1964-08-01
Abstract: Sulphur monochloride is heated with sulphur to form a polysulphur chloride having an atomic ratio S:Cl \sU 2:1 and an average molecular weight of about 192, or a mixture of polysulphur chlorides having an average molecular weight of 250 (see Specification 1,121,306).ALSO:Chloro - organo - polysulphides are prepared by reacting an olefin with a sulphur chloride compound having an atomic ratio S:Cl>1:1, the olefin being substituted by a nitrile, ether, thioether, thiol, carboxyl, amino, amido, nitro or phenol.  The ether or thioether group may form part of a ring. Chloro-organo-monosulphides are formed as by-products.  The products may be reduced to form episulphides.
Patent GB-392444-A (GB)
Title: Improvements in and relating to machines for rolling chain wheels and the like
IPC: B21H1/02
Filed: 1932-10-29
Abstract: 392,444. Rolling chain &c. wheels. STAHLER, A., 6<1>, Rathenaustrasse, Hagen, Westphalia, Germany. Oct. 29, 1932, No. 30416. Convention date, Oct. 29, 1931. [Class 83 (iv).] A machine for edge-rolling chain wheels &c. comprises a driven stationary roll 3 and an idle roll 15 mounted in a slide which is advanced by a cam 16, the wheel &c. 13 to be rolled being held between clamping plates 10 at the end of a freely swinging lever 8 whose pivot is adjustable in a slot 31. The slide carrying the idle roller is in two relatively adjustable parts 14, 17. The camshaft 18 is driven by chain gearing through a clutch which is disengaged when the cam 16 has passed its greatest throw, the disengagement of the clutch being effected by mechanism (not shown) controlled by a cam 25 which also actuates linkage 26, 28 to release the locking gear for the clamping plates 10. The work, after release by a handle 30 falls to a shoot in the machine, a new wheel then being inserted between the plates and clamped by movement of the handle 30 which automatically re-engages the clutch for driving the camshaft 18.
Patent GB-159960-A (GB)
Title: Improved process for the manufacture of catalytic iron or of catalysts containing catalytic iron
IPC: B01J23/70
Filed: 1919-12-05
Abstract: Pure iron, which is useful as a catalyst for the synthesis of ammonia, is prepared by treating ferric nitrate solution with just sufficient silver nitrate to precipitate any chloride present, filtering, evaporating the solution to dryness, partially converting the nitrate into oxide by gentle ignition, washing out the residual nitrate together with any oxidized sulphur product, and finally reducing the ferric oxide.  An inert support, such as pumice or asbestos, may be added just prior to ignition; and a promoter may be incorporated with the catalyst by adding ammonium molybdate, potassium osmate, titanium nitrate, uranium nitrate, or an alkali tungstate, to the purified ferric oxides before reduction.  The product is preferably heated in pure ammonia gas. Specifications 19249/10, 5833/11, 24657/11, and 25252/11 are referred to.ALSO:Potassium osmate is prepared by oxidizing metallic potassium with water vapour and adding osmium anhydride to the resulting liquid.  Specifications 19249/10, 5833/11, 24657/11 and 25252/11, [all in Class 1 (i), Chemical processes &c.], are referred to.
Patent GB-1081764-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
Inventor: PICKMAN DAVID OPENSHAW
IPC: G21C3/06
Filed: 1963-08-01
Abstract: 1,081,764. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. July 14, 1964 [Aug. 1, 1963], No. 30541/63. Heading G6C. A fuel element of the type comprising a bar of fissile material enclosed in a can having a plurality of outwardly-extending projections spaced around the can, has the projections at one end of the fuel element formed for engagement with a fuel element lifting grab. Thus, the projections 10 at the top of the fuel element have concave detents 12. The fuel element is as described in Specification 1,081,765.
Patent GB-678072-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: C03C27/02
Filed: 1950-12-15
Abstract: 678,072. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 15, 1950 [Dec. 19, 1949], No. 30600/50. Class 39 (i). In a cathode-ray tube, the glass neck is sealed to an outwardly extending flange on a conical metal member. A conical part 4 of ferrochromium or ingot iron carries the flange 5 to which is sealed at right angles thereto the glass neck 6. In another form, Fig. 3 (not shown), a cylindrical flange of ingot iron is pressure welded, with the use of enamel to a lead-glass neck. An internal graphite coating on the neck is used to connect the metal cone to an anode.
Patent GB-265115-A (GB)
Title: Improvements in cutters for use in machines for cutting or breaking coke and like fuels
IPC: B02C4/30
Filed: 1926-12-04
Abstract: 265,115. Pertwee, H. A., and Back, W. H. Dec. 4, 1926. Roller mills. - In a machine for cutting or breaking coke &c. of the kind comprising a hopper or chamber containing two oppositelyrotating horizontal shafts carrying cutters, each cutter-arm d is formed with a comparatively narrow cutting edge or face e, the sides g of the arms diverging from each other from the edge e to a point about midway between the edge e and the rear edge f and then converging towards each other to form the rear edge e. The outer end of each arm may be bevelled as at h. As shown, each side g of a cutter-arm is constituted by two flat surfaces, but each side may be formed by a single curved surface. The bosses c of the cutters are keyed to the shafts a, b, but the latter may be of square form and the cutters made with square holes to fit thereon.
Patent GB-1448801-A (GB)
Title: Suspension device for a slipper brake magnet
IPC: B61H7/08
Filed: 1974-07-11
Abstract: 1448801 Track brakes; magnet brakes KNORR-BREMSE GmbH 11 July 1974 [20 July 1973] 30826/74 Heading F2E A slipper brake magnet part 1 is mounted on a vehicle part for movement between an upper inoperative position and a lower rail engaging working position; a centring device acts to centre the brake magnet part 1 as it is displaced to its inoperative position and this device comprises a centring pin 14 mounted on one of the parts and a guide element 11 mounted on the other part, the guide element 11 being provided with a centring passage for receiving the pin 14, and the pin 14 including a tapered end portion 16, an intermediate cylindrical guiding portion 17 received in and being substantially the same cross-section as the centring passage, and a tapered base portion 18 co-operating with a tapered passage 11<SP>1</SP> in the guide element 11 communicating with the centring passage. In the illustrated embodiment the pin 14 is mounted on the brake magnet part 1 and the guide element 11 is mounted on the vehicle part. The guide element 11 is jammed within a rubber ring 10, which ring 10 is mounted in grooves 9, 12 in the element 11 and in an outer housing member 8 which is connected with a bearer 6 of the vehicle bogie by bolts 7<SP>1</SP>, oversize apertures 29 allowing of adjustment of the element 11 relative to pin 14. The pin 14 is screwed onto a pin 4 fitted to a bracket 3 to which is attached the magnet part 1. A U-shaped member 21 surrounds on three sides a square securing sleeve portion 19 of the pin 14 and lugs 23, 23<SP>1</SP> at the limb ends 22 of the U-shaped member bear in recesses 26 in the bracket 3. Bores 24, 25 in the lugs 23, 23<SP>1</SP> may be brought into alignment with a bore in bracket 3 for insertion of a latch pin 28. The magnet part 1 is adjustable vertically by screwing pin 14 with member 21 removed. The ring 10 affords lateral, resilient support to the magnet part 1 and the passage 11<SP>1</SP> takes up resiliently upward loading during lifting off of magnet part 1.
Patent GB-1390084-A (GB)
Title: Signal transmission systems
IPC: H04B7/01
Filed: 1972-07-01
Abstract: 1390084 Radio signalling MARCONI CO Ltd 31 May 1973 [1 July 1972] 30913/72 Heading H4L In a radio transmission system in which the stations are relatively movable and are subject to doppler shift, e.g. a satellite or aircraft communication system in which it is necessary to transmit a signal to provide a reference frequency at a remote station, the reference frequency f 0  is generated at 1 in a ground station and this frequency is compared with the frequency from a controllable oscillator 7 via AND gate 2 and OR gate 5 to control the frequency of oscillator 7 accordingly. The output of oscillator 7 is transmitted via modulator 8 and transmitter 9. The signal is received at the satellite at 10 and demodulated at 11 to provide the timing signal f 0  and signal f 0  is retransmitted via modulator 13 and transmitter 14. At the ground station the return signal is received at 15, demodulated at 16 and compared in AND gate 4 with the output of oscillator 1 inverted at 3. Assuming that the satellite is moving towards the earth station and that for each direction of transmission there is a doppler shift of #f the frequency of oscillator 7 is controlled by the feedback loop to be equal to f 0 -#f so that the required frequency f 0  appears at the satellite. The return signal appearing at receiver 15 will be f 0 +#f which when combined in AND gate 4 with the inverted output of oscillator 1 provides a control signal whose mark/space ratio denotes the frequency error of oscillator 7.
Patent GB-172199-A (GB)
Title: Improvements in or relating to the manufacture of metallurgical coke
IPC: C10B57/04
Filed: 1920-11-02
Abstract: 172,199. Leadbeater, J. W. Nov. 2. 1920. Materials for making coke and other products. -Metallurgical coke is obtained by pulverizing or disintegrating the black or lower or more dense strata of peat in their natural moist state and mixing the product with ground pitch or with refined tar and with small coal, the resultant mixture being carbonized at a temperature of from about 1000‹ to 1500‹ F.
Patent GB-688083-A (GB)
Title: Improvements in arrangements for the lubrication of the bearings of piston engines, especially of two-stroke engines
IPC: F01M1/04
Filed: 1950-12-19
Abstract: 688,083. Lubricating passages. SOC D'APPAREILS DE CONTROLE ET D'EQUIPEMENT DES MOTEURS (S.A.C.E.M.). Dec. 19, 1950 [Dec. 23, 1949], No. 30940/50. Class 7 (ii) [Also in Group XXXIV] The bearing 5 of the crankshaft 1 of a twostroke engine is lubricated by fuel containing lubricant which is forced into a closed chamber 7 through a duct 9 on increase of crankcase pressure, and sucked from the chamber 7 on decrease of crankcase pressure. The chamber 7 is disposed at a point at which the temperature is lower than in the casing of the engine in order to produce a condensation of the lubricant particles. A similar chamber 7 is provided adjacent the bearing 6. In a modification, the fluid is admitted to the chamber 7 through a duct 10, Fig. 2, containing a non-return valve 11, and a duct 13 containing a non-return valve 14 provides communication between the lower end of the chamber 7 and the bearing, 5.